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3 years ago

Which equipment is best to hold and to measure liquids

Biology

1 answer:

Thepotemich [5.8K]3 years ago

6 0

Explanation:

Beakers are the standard vessel used in chemistry. They come in all sizes including 5 milliliter (ml) flasks and flasks of many liters (L). Much like a cup or a mug, they consist of a cylinder, usually glass, with a flat bottom made to hold liquid. Beakers may or may not have a pour spout although they usually do.

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1. Flower position, stem length, and seed shape are three characters that Mendel studied. Each is controlled by an independently

maria [59]

Answer:

a. 1/64 AATTDD

b. 1/64 aattdd

c. 8/64=1/8 AaTtDd

d. 2/64 = 1/32 AATTDd or aattDd or AAttDd or aaTTDd

Explanation:

Available data:

Flower position: Axial (A) is dominant to Terminal (a)

Stem length: Tall (T) is dominant to dwarf (t)

Seed shape: Round (R) is dominant to wrinkled (r)

Cross:

Parental) AaTtDd x AaTtDd

Knowing that these four genes assort independently, then we can infer that the F1 will have the next genotypic proportions for each gene:

AA= 1/4

Aa =2/4

aa = 1/4

TT = 1/4

Tt = 2/4

tt = 1/4

DD = 1/4

Dd = 2/4

dd = 1/4

This is the same as developing a Punnett square for each gene separately.

Knowing this, to get each of the mentioned genotypes for each trait, we must multiply their respective genotypic proportions, like this:

a. homozygous for the three dominant traits, AATTDD

AA1/4 x TT 1/4 x DD 1/4 = AATTDD 1/64

b. homozygous for the three recessive traits, aattdd

aa 1/4 x tt 1/4 x dd 1/4 = aattdd 1/64

c. heterozygous for all three characters, AaTtDd

Aa 2/4 x Tt 2/4 x Dd 2/4 = AaTtDd 8/16=1/8

d. homozygous for axial and tall, heterozygous for seed shape. There are four possibilities, all of them with the same result:

AATTDd --> 1/4 x 1/4 x 2/4 = 2/64=1/32

aattDd ---> 1/4 x 1/4 x 2/4 = 2/64=1/32

AAttDd ---> 1/4 x 1/4 x 2/4 = 2/64=1/32

aaTTDd ---> 1/4 x 1/4 x 2/4 = 2/64=1/32

4 0

3 years ago

Read 2 more answers

What is the main difference between negative and positive feedback?

aliya0001 [1]

Answer:

i know the answer

Explanation:

negative feedback is bad feedback that the person did not like the subject, posative feedback is when the person likes the subject, hope i helped

6 0

3 years ago

Using the genetic code below, what protein sequence does the rna sequence cuagcucgauaucuc code for?

mixer [17]

If CUAGCUCGAUAUCUC is a mRNA sequence then the codes are:
CUA - Leucine
GCU - Alanine
CGA - Arginine
UAU - Tyrosine
CUC – Leucine
This means that the protein synthesized during the translation is going to have a sequence LeuAlaArgTyrLeu.

4 0

3 years ago

Please help with these biology questions image attached

Vesnalui [34]

The answer is D) unlimited flow of water into or out of the cell for #9.

For #10, the answer is C) endocytosis and exocytosis.

6 0

4 years ago

PLZZZZZ HELP ME

11111nata11111 [884]

Answer:

Considering the organization of the body the level of organization in which proteins like collagen are found is the molecular level, and this level of organization allows the construction of the structure and functions of the whole body.

Explanation:

Collagen is a protein molecule that belongs to the molecular organization level, like all biomolecules.

Proteins have multiple functions in the body:

They participate in the construction or structure of the body.
They form specialized proteins, the enzymes, to facilitate organic chemical reactions.
They are part of the structure of cell membranes, allowing cellular recognition and transmembrane transport.

In this way the protein molecules, belonging to the molecular level, contribute to the organization of the whole body.

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3 years ago